... repair instead of seamless, copper pipePipe Outer diameter (mm)Pipe Thickness (mm)Pipe Working pressure (MPa) [hot and cold water, ... special liquid]Pipe Working pressure (MPa) [gas]202.02.51.0252. ... gas, and combustion gas;Agriculture:Deep well pipe, Strainer, under drain conveying pipe, drainage pipe, irrigation pipe;Chemical industry:Manufacturing of Acid, alkali ...